| 摘要 |
Automatic roll-up device for a safety belt having a winding shaft connected to a roll-up spring and to an automatic locking device and carrying a belt web winding roll, the roll-up device also having a belt brake located downstream of the winding shaft in direction of pull of the belt web, the belt brake being in the form of a movable clamping member partly looped around by the belt web and actuatable for clamping the belt web after release of the automatic locking device including a brake roller partly looped around by the belt web and being rotatable in the same direction as the winding shaft, when the belt web is being unrolled and rolled-up, the brake roller being movably mounted on a housing for the automatic roll-up device and, upon release of locking action by the automatic locking device, being pressable by the belt web in direction of the belt web winding roll clampingly and lockingly against the belt web winding roll, and a spacer member operatively connected with the brake roller and braced against the belt web winding roll, the brake roller being held by the spacer member at substantially constant spacing from the belt web winding roll, in non-locked condition thereof, for every diameter of the belt web winding roll. |
